----The boss said we had only three days to finish the task. ----No problem. We have already _________ two thirds of it.
A.
got over
B.
given away
C.
got through
D.
made out
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参考答案:
举一反三
【简答题】Use the node-voltage method to find the voltage vo in the circuit shown. Refer to Section 3.4 on page 65 of Nelsson's book to see how to deal with a problem like this.
【单选题】Refer to Figure 12. The circuit is used to derive a 60 Hz reference for a digital clock. After running for 24 hours the clock appears to be running 2 minutes and 18 seconds slow. What appears to be wr...
A.
The error is very small and is to be expected of a circuit of this type; the clock should be regularly reset.
B.
The modulus of the counter has decreased, causing the counter to produce a lower output reference signal for the clock.
C.
The modulus of the counter has increased, causing a drop in the output frequency of the counter.
D.
The XTAL OSC is probably cooling off too much at night and consequently slowing down;the XTAL OSC should be temperature compensated.